Waterside Power, LLC
Oil power plant in Fairfield County, Connecticut. 69.6 MW of nameplate capacity across 3 generators, operated by Waterside Power, LLC.
Also known as Waterside Power Plant · EIA plant 56189
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Key facts
- Capacity
- 69.6 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- May 2004First generator online
- Operator
- Waterside Power, LLCEIA operator ID 49840
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Fairfield County, CT41.0372, −73.5564
- EIA plant ID
- 56189EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Waterside Power produces
Free · EIA-923Net generation, 2025
2.02 GWh
2,022 MWh, final
Capacity factor, 2025
0.3%
2024: 0.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.0–2.1
GWh a year. Low 2015, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | 5,548 | Not reported | 12 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | 899 | Not reported | 12 of 12 |
| 2006 | 1,495 | Not reported | 12 of 12 |
| 2007 | 2,829 | Not reported | 12 of 12 |
| 2008 | 3,871 | Not reported | 12 of 12 |
| 2009 | 2,030 | Not reported | 12 of 12 |
| 2010 | 5,185 | 0.9% | 12 of 12 |
| 2011 | 2,335 | 0.4% | 12 of 12 |
| 2012 | 1,484 | 0.2% | 12 of 12 |
| 2013 | 1,895 | 0.3% | 12 of 12 |
| 2014 | 3,534 | 0.3% | 12 of 12 |
| 2015 | 1,026 | 0.2% | 12 of 12 |
| 2016 | 1,452 | 0.2% | 12 of 12 |
| 2017 | 1,242 | 0.2% | 12 of 12 |
| 2018 | 1,378 | 0.2% | 12 of 12 |
| 2019 | 1,243 | 0.2% | 12 of 12 |
| 2020 | 1,098 | 0.2% | 12 of 12 |
| 2021 | 1,487 | 0.2% | 12 of 12 |
| 2022 | 1,676 | 0.3% | 12 of 12 |
| 2023 | 1,826 | 0.3% | 12 of 12 |
| 2024 | 2,136 | 0.3% | 12 of 12 |
| 2025 | 2,022 | 0.3% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDCO₂, 2025
Not reported
US short tons. 2024: Not reported
SO₂, 2025
Not reported
US short tons
NOx, 2025
8
US short tons
0 of 3 EPA units reported CO₂ in 2025 (4, 5, 7), matched to EIA plant 56189 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 4 | Petroleum Liquids | 23.2 | May 2004 |
| 5 | Petroleum Liquids | 23.2 | May 2004 |
| 7 | Petroleum Liquids | 23.2 | May 2006 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Waterside Power, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Waterside Power
How much power does Waterside Power, LLC produce?
Waterside Power, LLC reported 2,022 MWh (2.02 GWh) of net generation in 2025, a 0.3% capacity factor on 69.6 MW of nameplate capacity.
Where is Waterside Power, LLC?
Waterside Power, LLC is in Fairfield County, Connecticut, at 41.0372, −73.5564. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Waterside Power, LLC?
EIA-860M for August 2026 lists Waterside Power, LLC as the operator (EIA operator ID 49840). The operator is not always the owner.
When did Waterside Power, LLC start operating?
Its first generator began operating in May 2004, according to EIA-860M.
Does InfraMap have power prices for Waterside Power, LLC?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Waterside Power, LLC, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page